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<b>let </b><font color="Maroon">G</font> be  <a href="glib_000.html#V2">finite</a> <a href="glib_000.html#NM2">_Graph</a>, <font color="Maroon">H</font> be  <a href="glib_000.html#V2">finite</a> <a href="glib_000.html#NM2">_Graph</a>;<br/><b>let </b><font color="Maroon">g</font> be    <a href="chord.html#M3" target="_self">VertexScheme</a> of <font color="Maroon">G</font>;<br/>



<b>assume </b><a NAME="E1:128"/><i><font color="Green">E30</font></i>: 
<font color="Maroon">G</font> <a href="glib_000.html#R5">==</a> <font color="Maroon">H</font>
 ;<br/>

<a NAME="E2:128"/><i><font color="Green">E33</font></i>: 
<font color="Maroon">g</font> is    <a href="finseq_1.html#M2">FinSequence</a> of  <a href="glib_000.html#K6">the_Vertices_of</a> <font color="Maroon">H</font>
 
<b>by </b><i>, <a class="ref" href="glib_000.html#D36">GLIB_000:def 36</a></i>;<br/>
<a NAME="E3:128"/>
( <font color="Maroon">g</font> is <a href="funct_1.html#V2">one-to-one</a> &amp;  <a href="relat_1.html#K2">rng</a> <font color="Maroon">g</font> <a href="hidden.html#R1">=</a>  <a href="glib_000.html#K6">the_Vertices_of</a> <font color="Maroon">G</font> )
 
<b>by </b><i/>;<br/>
<a NAME="E4:128"/><b>then </b>
( <font color="Maroon">g</font> is <a href="funct_1.html#V2">one-to-one</a> &amp;  <a href="relat_1.html#K2">rng</a> <font color="Maroon">g</font> <a href="hidden.html#R1">=</a>  <a href="glib_000.html#K6">the_Vertices_of</a> <font color="Maroon">H</font> )
 
<b>by </b><i>, <a class="ref" href="glib_000.html#D36">GLIB_000:def 36</a></i>;<br/>
<b>hence </b><a NAME="E5:128"/>
<font color="Maroon">g</font> is    <a href="chord.html#M3" target="_self">VertexScheme</a> of <font color="Maroon">H</font>
 <b>by </b><i>, </i>;<br/>


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